The purpose of this activity is to engage students in problem solving to find an unknown addend.
In readiness for this problem, the students should have familiarity with each of the following components of mathematics. The problem may be solved with different combinations of these components.
- Counting one to one
- Counting on
- Equal sharing
This activity may be carried out with guidance, or by allowing the student to follow their own method of solution. The approach should be chosen in sympathy with students’ skills and depth of understanding.
The visual approach (show more)
- The student is able to use images and/or objects to represent a problem and find a solution.
Prompts from the teacher could be:
- How many bears are there altogether?
- How many bears are in the first cave?
- How many bears are not in the first cave? This is how many bears there are in the other two caves.
- How many bears might be in each of the other two caves?
The conceptual approach (show more)
- The student is able to solve a problem using sharing and other strategies, to find unknown addends.